One for All, a sacred torch passed on from one generation to the next. When Izuku Midoriya, a child who a possesses a quirk which embodies the "Light" becomes the successor of All Might things become interesting. (Quirk!Izuku, OP!Izuku, IzukuxOchakoxMomo, don't own the image.)

In a Superhuman society, where Izuku Midoriya is Quirkless, he is seen as worthless and a social outcast. But one day he wakes up with a brown... monkey tail? Izuku believes this new power is a Quirk, but in reality, it is not a Quirk at all, but it is a power that will allow him to become the Greatest Hero Of All Time. He is Deku: The Golden Saiyan Hero of Hope. OPDeku, DekuxHarem

Straight from the poll! Izuku was quirkless... until he ate a strange fruit that gave him a quirk! Now with a quirk, he will strive to become the greatest Hero! Strong Izuku, Izuku x harem due to poll. Slight One Piece x-over for just the devil fruit.

"Strive for a place among gods and you shall reach it." Izuku Midoriya's desire to be a Hero was so strong that it brought to the world of Quirks a power never seen before. A power so strong and unique that it will lay down the foundations for a new era of peace and prosperity. "The burden on his shoulders was great, but his will was greater." Slight AU and X-Over. Izuku/Harem.

When quirks appeared, humanity dealt with the greatest power shift it had seen in millennia. The sudden change gave women powers never seen before, but men were left behind. It was an age of heroes. Now 200 years later, the rest of humanity began to catch up... and it all started with a man gifted with Total Command over every function of his body.